KR20100024190A - Rfid tag and method for manufacturing the same - Google Patents

Rfid tag and method for manufacturing the same Download PDF

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Publication number
KR20100024190A
KR20100024190A KR1020080082937A KR20080082937A KR20100024190A KR 20100024190 A KR20100024190 A KR 20100024190A KR 1020080082937 A KR1020080082937 A KR 1020080082937A KR 20080082937 A KR20080082937 A KR 20080082937A KR 20100024190 A KR20100024190 A KR 20100024190A
Authority
KR
South Korea
Prior art keywords
leaf spring
spring antenna
rfid tag
fixing member
hole
Prior art date
Application number
KR1020080082937A
Other languages
Korean (ko)
Inventor
김성철
Original Assignee
김성철
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김성철 filed Critical 김성철
Priority to KR1020080082937A priority Critical patent/KR20100024190A/en
Publication of KR20100024190A publication Critical patent/KR20100024190A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/0772—Physical layout of the record carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/0775—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for connecting the integrated circuit to the antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas

Abstract

According to the present invention, a plate spring antenna is fixed, and an insert member is inserted into a through hole exposing the end of the leaf spring antenna to support the leaf spring antenna, thereby maintaining flatness of the leaf spring antenna. A tag and a method of manufacturing the same.

An RFID tag according to the present invention, comprising: an RFID chip for storing tag information and having a connection pad; A fixing member having a through hole into which the RFID chip is inserted; A leaf spring antenna fixed by the fixing member and connected to the connection pad of the RFID chip; And an insert member inserted into the through hole to support a connection portion between the leaf spring antenna and the connection pad.

Description

 RDF tag and manufacturing method therefor {RFID TAG AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to an RFID tag and a method of manufacturing the same. In particular, the plate spring antenna is fixed, and an insert member is inserted into a through hole exposing an end of the plate spring antenna to support the plate spring antenna. It relates to an RFID tag and a method of manufacturing the same that can maintain the flatness of the spring-type antenna.

In recent years, wireless communication technology is widely used in all industrial fields including distribution, and examples of wireless communication technology include technology fields such as smart cards and radio frequency identification (RFID).

1A is a plan view of an RFID tag according to the prior art, and FIG. 1B is a cross-sectional view taken along line A-A of the RFID tag shown in FIG. 1A.

1A and 1B, the RFID tag according to the related art includes an RFID chip 10, an antenna 20, a substrate 30, and a sealing material 40. The RFID chip 10 stores tag information and is connected to the substrate 30 to transmit and receive the tag information. The antenna 20 is a coil spring type that can mitigate external shocks, and is soldered to the connection point with the substrate 30 to enable electrical connection with the RFID chip 10. The sealing material 40 is applied to protect the connection point between the RFID chip 10 and the antenna 20 and the substrate 30.

Since the RFID tag according to the related art uses a coil spring for shock mitigation, there is a problem in that the RFID tag must be individually soldered to connect to the substrate. In particular, the coil spring has a problem that alignment by automated equipment is not easy.

The present invention is to solve this problem, by fixing the leaf spring antenna, and inserting the insert member in the through-hole exposing the end of the leaf spring antenna to support the leaf spring antenna by the leaf spring antenna An object of the present invention is to provide an RFID tag and a method of manufacturing the same.

An RFID tag according to the present invention, comprising: an RFID chip for storing tag information and having a connection pad; A fixing member having a through hole into which the RFID chip is inserted; A leaf spring antenna fixed by the fixing member and connected to the connection pad of the RFID chip; And an insert member inserted into the through hole to support a connection portion between the leaf spring antenna and the connection pad.

In addition, the RFID tag according to the present invention preferably further comprises a sealing material for filling the through-holes on the RFID chip.

The leaf spring antenna according to the present invention, the body portion interposed between the upper plate and the lower plate of the fixing member; A connection part extending from the body part into the through hole; And it is preferable to include a wrinkle portion extending from the body portion to the outside of the fixing member.

The connection part of the present invention may extend from the center of the body portion, or respectively extend from the upper and lower portions of the body portion, the width of the body portion may be larger than the width of the corrugated portion.

In addition, the wrinkle portion of the present invention may extend from the body portion in a U-shape.

The connection pad and the leaf spring antenna according to the present invention may be electrically connected using flip chip bonding or wire bonding, and the fixing member may include a synthetic resin molded by an injection process.

The method of manufacturing an RFID tag according to the present invention includes the steps of: (a) fixing a leaf spring antenna, and preparing a fixing member having a through hole exposing a connection portion of the leaf spring antenna; (b) inserting an insert member for supporting a connection portion of the leaf spring antenna into a through hole of the fixing member; And (c) inserting the RFID chip into the through hole to electrically connect the connection pad of the RFID chip to the leaf spring type antenna.

The step (a) according to the present invention may include injection molding the fixing member, and the step (a) further includes inserting and fixing the plate spring antenna between the upper plate and the lower plate. It is desirable to.

In addition, the step (d) preferably includes the step of flip chip bonding the connection pad and the leaf spring antenna and the wire bonding of the connection pad and the leaf spring antenna.

In addition, the step (d) preferably comprises the step of applying a sealing material for embedding the through-hole in the upper portion of the RFID chip.

According to the present invention, an RFID tag and a method of manufacturing the same are easily connected to the plate spring antenna and the RFID chip and the alignment of the RFID tag without soldering is performed using the leaf spring antenna and the fixing member. By using a spring to mitigate external shocks there is an advantage that there is no damage to the RFID tag.

In addition, by inserting an insert member into the through hole provided in the fixing member to support the leaf spring antenna interposed between the upper plate and the lower plate of the fixing member can maintain the flatness of the leaf spring antenna. In addition, there is an advantage that the reception rate of the RFID tag is increased through the curved plate spring antenna.

Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail.

FIG. 2A is a plan perspective view showing an RFID tag according to a first embodiment of the present invention, FIG. 2B is a cross-sectional view taken along line AA of the RFID tag shown in FIG. 2A, and FIGS. 2C and 2D are respectively shown in FIG. 2A. Perspective and perspective view of an RFID tag.

2A to 2D, the RFID tag according to the present invention includes an RFID chip 100, a leaf spring antenna 200, a fixing member 300, and an insert member 400. In addition, an encapsulating material 500 may be further included.

The RFID chip 100 has tag information stored therein and a connection pad electrically connected to the leaf spring antenna 200.

The leaf spring antenna 200 is electrically connected to the RFID chip 100 to transmit a radio signal to the air or to receive a signal transmitted by an RFID reader (not shown).

The connection spring (not shown) of the leaf spring antenna 200 and the RFID chip 100 may be electrically connected using flip chip bonding, and a wire may be attached between the leaf spring antenna 200 and the connection pad. Can be connected by wire bonding. In addition, there are various connection methods.

The leaf spring antenna 200 extends into the through hole 150 from the body portion 220 and the body portion 220 interposed between the upper plate and the lower plate of the fixing member 300 to be electrically connected to the connection pad. In the connection part 210 and the body part 220, the corrugation part 230 extending to the outside of the fixing member 300 may be configured.

Preferably, the connection portion 210 is supported by the insert member 400 inserted into the through hole 150.

The pleats 230 may extend from the body portion 220 in a straight shape as shown in FIGS. 2A to 2D, or may extend in a U shape as shown in FIG. 3. However, the present invention is not limited thereto, and the shape of the RFID tag may vary depending on the standard or physical size of the RFID tag.

The connection part 210 and the body part 220 may have various shapes as shown in FIGS. 4, 5A, and 5B. This will be described in detail below.

4 is a plan view illustrating a leaf spring antenna of an RFID tag according to a first embodiment of the present invention, Figures 5a and 5b is a plan view showing a leaf spring antenna of an RFID tag according to another embodiment of the present invention to be.

The first embodiment illustrated in FIG. 4 is a case where the connection portion 210 of the leaf spring antenna 200 extends from the center of the body portion 220. Since the function of each component of the leaf spring antenna 200 is the same as the antenna of the RFID tag according to the first embodiment of the present invention, a detailed description thereof will be omitted.

Another embodiment illustrated in FIG. 5A is a case where the connection portion 210 of the leaf spring antenna 200 extends from the upper and lower portions of the body portion 220, respectively. Since the function of each component of the leaf spring antenna 200 is the same as the leaf spring antenna 200 of the RFID tag according to the first embodiment of the present invention, a detailed description thereof will be omitted.

Another embodiment illustrated in FIG. 5B is a case where the width of the body portion 220 of the leaf spring antenna 200 is larger than the width of the corrugation portion 230. Since the function of each component of the leaf spring antenna 200 is the same as the leaf spring antenna 200 of the RFID tag according to the first embodiment of the present invention, a detailed description thereof will be omitted.

The position of the connection unit 210 may be modified according to the pad position of the RFID chip 100 in addition to the case illustrated in FIGS. 4, 5A, and 5B.

The fixing member 300 fixes the leaf spring antenna 200. The fixing member 300 exposes an end portion of the leaf spring antenna 200, that is, the connection portion 210, and has a through hole 150 into which the RFID chip 100 is inserted.

Preferably, the fixing member 300 is formed integrally by using an injection process or consists of an upper plate and a lower plate, and the plate spring antenna 200 may be interposed therebetween. In addition, the material of the fixing member 300 is preferably a synthetic resin.

The size and shape of the through hole 150 may vary depending on the size and shape of the RFID chip 100. For example, the shape of the through hole 150 may be formed in a square or a circle.

The insert member 400 is inserted into the through hole 150 to support a connection portion between the leaf spring antenna 200 and the connection pad. Therefore, the shape of the insert member 400 is preferably the same as the shape of the through hole 150.

Preferably, the insert member 400 is inserted into the through hole 150 in the lower surface of the fixing member 300. Therefore, the upper surface of the insert member 400 may be in contact with the lower surface of the connecting portion 210 to support the connecting portion 210.

In addition, the material of the insert member 400 is preferably a synthetic resin.

The sealing material 500 performs a function of protecting and fixing the RFID chip 100. Preferably, the sealing material 500 is applied so as to fill the through hole 150 in the upper portion of the RFID chip 100 after the RFID chip 100 is inserted.

6 is a flowchart illustrating a method of manufacturing an RFID tag according to the present invention.

Referring to FIG. 6, a fixing member having a through hole for fixing a leaf spring antenna and exposing a connection portion of the leaf spring antenna is prepared (S610). Preferably, the fixing member is integrally formed using an injection process of injecting synthetic resin into the mold, cooling to a predetermined temperature in the mold to produce a predetermined shape, and fixing the plate spring antenna by inserting the fixing member. can do. In another embodiment, in the injection molding step, the fixing member may be composed of an upper plate and a lower plate, and the plate spring antenna may be inserted and fixed therebetween. Preferably, the body portion of the leaf spring antenna is inserted into the fixing member.

Insert member is inserted into the through-hole of the fixing member (S630). Preferably, the insert member supports the connection below the connection of the leaf spring antenna. Thus, the connecting portion is supported by the insert member to maintain flatness.

The RFID chip is inserted into the through hole of the fixing member exposing the end of the leaf spring antenna (S650).

The connection pad of the RFID chip and the leaf spring antenna are electrically connected (S670). Here, the connection pad and the leaf spring antenna may be bonded by flip chip bonding or wire bonding in the process of inserting the RFID chip. In addition, it is preferable to protect and fix the RFID chip by applying a sealing material for sealing the through hole on the RFID chip.

Although the configuration of the present invention has been described in detail, these are merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. This will be possible.

Therefore, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. It is intended that the scope of the invention be interpreted by the following claims, and that all descriptions within the scope equivalent thereto will be construed as being included in the scope of the present invention.

1A is a plan view of an RFID tag according to the prior art.

1B is a cross-sectional view taken along the line A-A of the RFID tag shown in FIG. 1A.

Figure 2a is a plan perspective view showing an RFID tag according to a first embodiment of the present invention.

FIG. 2B is a cross-sectional view taken along line A-A of the RFID tag shown in FIG. 2A;

2C and 2D are exploded perspective views of the RFID tag shown in FIG. 2A.

3 is a perspective view showing an RFID tag according to a second embodiment of the present invention;

4 is a plan view showing a leaf spring antenna of the RFID tag according to the first embodiment of the present invention.

5A and 5B are plan views illustrating a leaf spring antenna of an RFID tag according to another embodiment of the present invention.

6 is a flowchart illustrating a method of manufacturing an RFID tag according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: RFID chip 200: leaf spring antenna

210: connection portion 220: body portion

230: wrinkle portion 300: fixing member

400 insert member 500 sealing material

Claims (16)

An RFID chip that stores tag information and includes a connection pad; A fixing member having a through hole into which the RFID chip is inserted; A leaf spring antenna fixed by the fixing member and connected to the connection pad of the RFID chip; And Insert member inserted into the through hole to support the connection portion of the leaf spring antenna and the connection pad RFID tag comprising a. The method of claim 1, The leaf spring antenna, A body part interposed between the upper and lower plates of the fixing member; A connection part extending from the body part into the through hole; And RFID tag, characterized in that it comprises a wrinkle portion extending from the body portion to the outside of the fixing member. The method of claim 2, The connecting part is an RFID tag, characterized in that extending from the center of the body portion. The method of claim 2, The connecting part is an RFID tag, characterized in that extending from the top and bottom of the body portion, respectively. The method of claim 2, RFID body, characterized in that the width of the body portion is larger than the width of the wrinkle portion. The method of claim 2, The wrinkle part is an U-shaped RFID tag, characterized in that extending from the body portion . The method of claim 1, And the connection pad and the leaf spring antenna are electrically connected using flip chip bonding. The method of claim 1, And the connection pad and the leaf spring type antenna are electrically connected using wire bonding. The method of claim 1, The RFID tag further comprises a sealing material filling the through hole in the upper portion of the RFID chip. The method of claim 1, The fixing member is an RFID tag, characterized in that it comprises a synthetic resin molded in an injection process. (a) fixing a leaf spring antenna, and preparing a fixing member having a through hole exposing a connection portion of the leaf spring antenna; (b) inserting an insert member for supporting a connection portion of the leaf spring antenna into a through hole of the fixing member; And (c) inserting the RFID chip into the through hole to electrically connect the connection pad of the RFID chip to the leaf spring antenna; Method of manufacturing an RFID tag comprising a. The method of claim 11, The step (a) is a method of manufacturing an RFID tag comprising the step of injection molding the fixing member. The method of claim 12, The step (a) further comprises the step of fixing by inserting the leaf spring antenna between the upper plate and the lower plate. The method of claim 11, The step (d) of the RFID tag manufacturing method comprising the step of flip chip bonding the connection pad and the leaf spring antenna. The method of claim 11, The step (d) comprises the step of wire-bonding the connection pad and the leaf spring antenna. The method of claim 11, The step (d) of the RFID tag manufacturing method comprising the step of applying a sealing material for embedding the through hole in the upper portion of the RFID chip.
KR1020080082937A 2008-08-25 2008-08-25 Rfid tag and method for manufacturing the same KR20100024190A (en)

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KR1020080082937A KR20100024190A (en) 2008-08-25 2008-08-25 Rfid tag and method for manufacturing the same

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Application Number Priority Date Filing Date Title
KR1020080082937A KR20100024190A (en) 2008-08-25 2008-08-25 Rfid tag and method for manufacturing the same

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KR20100024190A true KR20100024190A (en) 2010-03-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102360188B1 (en) * 2021-05-25 2022-02-08 이지훈 RFID for use of inserting into a structure in case of factory automation and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102360188B1 (en) * 2021-05-25 2022-02-08 이지훈 RFID for use of inserting into a structure in case of factory automation and manufacturing method thereof

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